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0. H., JONES.

` GAR VENTILATOR, No. 293,967. Patented Feb. 19, 1884.

UNITED STATES PATENT t OFFICE.

OWEN H. JONES, OF HARTFORD, CONNECTICUT, vASSIGrN OR OF ONE-HALF TO FRANK C. SMITH, OF NEW YORK, N. Y.

CAR-VENTI LATO R.

SPECIFICATION forming part of Letters Patent No. 293,967, dated February 19, 1884.

, Application filed May 14, 1883. (No model.)

T all whom t mafy'concern:

Be it known that I, OWEN H. JoNEs, of Hartford, in the county of Hartford and State of Connecticut, have invented new and useful Improvements in Car-ventilators, of which the following is a specification, reference being had to the accompanying drawings.

-Heretofore the construction ofcar-ventilat ors adapted to exhaust the air from the car has lo been complicated and expensive.

The object ofmy invention is to construct a car-ventilator which shall be of simple and cheap construction, by which the exhaust is caused to operate by the moving of the car to which the device is attached.

My invention consists in the construction herein set out, whereby desirable advantages are attained.

In the accompanying drawings, in which 2o like letters of reference indicate like parts, Figure 1 is a side view of a section of a can bottom with my device applied thereto, the air-boX being in section. Fig. 2 is a view of the device as seen from the end of the car.

The construction will be readily understood on reference to the drawings.

a. represents an air-box, having a means of communication with the interior of the car, and having also a contracted outlet, b.

c represents a fan adapted to revolve within the air-box a, drawing the air from the open-4 ing in interior of the car and forcing it out of the orifice b. The wind-wheels d and e are arranged upon each side of the air-box, and are preferably secured to the same shaft. The 3 5 blades of the wind-wheels slant in the same direction, so that the tendency of both is to turn in the same direction when the car is in motion. The burden ofthe work will of course be performed by the wheel which is in front 4o of the air-box, this depending on the direction in which the car moves. The interior of the air-box and the car are connectedeither by a direct opening from one to the other or by means of tubes g. Suitable registers in the car enable the occupants to control the current.

I am aware of United States Letters Patent Nos. 274,063 and 11,101, and I make no claim to the construction therein shown.

Having therefore described my invention, 53 what I claim, and desire to secure by Letters Patent, is'- As a car-ventilator,' the air-box a, adapted to be secured to a car, in combination with tubes g, adapted to connect the interior of the car with the interior of the air-box, and the shaft f, having fan c and two wind-wheels, d all constructed and operating substantially as shown.

. OVEN H. JONES. 

